/**
* Returns a composed {@link BiPredicate2} that first applies the {@code before} functions to its
* input, and then applies this predicate to the result. If evaluation of either operation throws
* an exception, it is relayed to the caller of the composed operation.
*
* @param <A> The type of the argument to the first given function, and of composed predicate
* @param <B> The type of the argument to the second given function, and of composed predicate
* @param before1 The first function to apply before this predicate is applied
* @param before2 The second function to apply before this predicate is applied
* @return A composed {@code BiPredicate2} that first applies the {@code before} functions to its
* input, and then applies this predicate to the result.
* @throws NullPointerException If given argument is {@code null}
* @implSpec The input argument of this method is able to handle every type.
*/
@Nonnull
default <A, B> BiPredicate2<A, B> compose(
@Nonnull final Function<? super A, ? extends T> before1,
@Nonnull final ToCharFunction<? super B> before2) {
Objects.requireNonNull(before1);
Objects.requireNonNull(before2);
return (a, b) -> test(before1.apply(a), before2.applyAsChar(b));
}
/**
* Creates a {@link ObjBiByteToCharFunction} which uses the {@code first} parameter of this one as
* argument for the given {@link ToCharFunction}.
*
* @param <T> The type of the first argument to the function
* @param function The function which accepts the {@code first} parameter of this one
* @return Creates a {@code ObjBiByteToCharFunction} which uses the {@code first} parameter of
* this one as argument for the given {@code ToCharFunction}.
* @throws NullPointerException If given argument is {@code null}
*/
@Nonnull
static <T> ObjBiByteToCharFunction<T> onlyFirst(
@Nonnull final ToCharFunction<? super T> function) {
Objects.requireNonNull(function);
return (t, value1, value2) -> function.applyAsChar(t);
}